The Lubrizol Corporation

Alan C Clark

Clifford P Kowall

James H Bush

Matthew R Sivik

David L Westfall

Charles K Baumanis

Marvin M Maynard

Richard A Denis

Joseph W Pialet

Robert E Quinn

Richard Yodice

Bryan A Grisso

William A Higgins

Saurabh S Lawate

Sanjay N Kalhan

Carlos A Piedrahita

Edward J Konzman

Louis Burjes

Paul P Walsh

Edward P Richards

Leonard Edward Miller

Al E Haas

Donald L Surbey

Douglas R Shaw

James L Hambrick

Douglas J Hallenburg

Philip R Miller

David L Facchiano

The present invention relates to methods of using an aqueous composition or dispersion containing a water-soluble or water-dispersible synthetic polymer, and compositions formed thereof. The aqueous composition or dispersion is added to agricultural spray compositions, ink compositions, deicing or anti-icing compositions, latex paint and coating compositions, cleaner compositions, adhesives, fire-extinguishing chemical compositions, hydro-metallurgy/electro-winning compositions, compositions having organosilanes, personal care compositions, water-based hydraulic compositions, dust control compositions, and textile finish compositions, to impart properties including aerosol control, spatter control, shear stability, rheology control, transfer efficiency, oil/water reduction, sling control, emollient performance, film forming capability, surface activity, encapsulent ability, lubricity, thickening, and anti-wear capability, to the resultant composition formed thereof.

Methods of using an aqueous composition containing a water-soluble or water-dispersible synthetic polymer and resultant compositions formed thereof

The present invention describes a process for reducing the chlorine content of various organochlorine compounds including the step introducing a source of iodine or bromine and mixtures thereof to the organochlorine compound.

Treatment of organic compounds to reduce chlorine level

The present invention relates to improved process for beneficiating an ore-containing sulfide material. In particular, the process is useful for beneficiating ores and recovering metals such as gold, copper, lead, molybedenum, zinc, etc., from the ores. In one embodiment, the process comprises the steps of:

Flotation process using metal salts of phosphorus acids

Basic metal dihydrocarbylphosphorodithioates and phosphoromonothioates are prepared by employing a catalytic amount of an alkali metal or alkaline earth metal hydroxide or mixtures thereof. Also basic, multiple metal complexes of various dihydrocarbylphosphorodithioic acids have been developed. These salts and complexes are highly effective antiwear and antioxidant additives for functional fluids, e.g., lubricating oils.

Basic metal dihydrocarbylphosphorodithioates

A method of preparing an oil-soluble composition is disclosed. The method comprises preparing a dihydrocarbyl monothiophosphoric acid characterized by the formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrocarbyl groups of from 1 to about 30 carbon atoms and X is oxygen or sulfur, with the proviso that one X is sulfur comprising reacting

Method of preparing monothiophosphoric acid by sulfurizing a phosphite

The present invention relates to an improved process for beneficiating an ore containing sulfide materials with selective rejection of pyrite, pyrrhotite and other metals and gangue. In particular, the process is useful for beneficiating ores and recovering copper from said ores. In one embodiment the process comprises the steps of

Ore flotation process and use of mixed hydrocarbyl dithiophosphoric

Excess amounts of a pure form of acrylonitrile are reacted with other reactants in the production of various compounds such as 2-acrylamido-2-methyl propane sulfonic acid. Accordingly, large amounts of acrylonitrile remain unreacted and present with other contaminants. The present invention is directed toward the purification of such unreacted acrylonitrile and the purified acrylonitrile obtained from such a purification process. The purification is carried out by treating the unreacted acrylonitrile with a base and removing salts formed. The treated material is fed to a heat exchanger which heats the material preferably under vacuum to about 120.degree. F. and provides a heated fluid material. This heated fluid material is pumped to a lower area of a distillation tower which is maintained under vacuum and includes a plurality of distillation trays. Purified acrylonitrile has a lower boiling point and is drawn toward the top of the tower by vacuum and removed whereas the remainder of the material which includes contaminants has a higher boiling point and falls to the bottom of the tower. This bottom portion is removed and recycled to the heat exchanger. The purified acrylonitrile removed from the top of the tower by vacuum is capable of, and sufficiently pure for, reuse in the formation of other compounds such as 2-acrylamido-2-methyl propane sulfonic acid. The process provides purified acrylonitrile while avoiding undesirable polymerization. The purified acrylonitrile obtained from the proces and 2-acrylamido-2-methyl propane sulfonic acid produced with the purified acrylonitrile lack undesirable water insoluble polymers and copolymers and have improved and unexpectedly superior storage stability.

Process for recovering and purifying unreacted acrylonitrile from the

Curable compositions of matter comprising an epoxy resin and a curing agent selected from the group consisting of polyvalent metal salts of a phosphorodithioic acid, the acid being derived from the reaction of a phosphorus sulfide with a hydroxyl containing aromatic compound, and products derived from the reaction of the polyvalent metal salt with a mono- or polyamine.

Curable epoxy resin compositions

Solutions of salts, especially sodium salts, of acrylamidoalkanesulfonic acids in organic liquids such as dimethylformamide are prepared by reacting the acid with a metal salt of a weak acid (preferably a metal carbonate or bicarbonate), or a cation exchange resin in the metal salt form, in the organic liquid in the presence of a free radical polymerization inhibitor (preferably an oxygen-containing gas such as air with which the mixture is blown) until the neutralization number of the mixture to phenolphthalein is a base number or, if an acid number, is no higher than about 1.0. In a preferred embodiment of the process, the mixture is blown with air and such blowing is continued until the acid number of the system is no greater than about 1.0, after which a strongly alkaline reagent is added until the neutralization number is a base number or an acid number no higher than about 0.1.

Solutions of acrylamidoalkanesulfonic acid salts in organic liquids and

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Mentor, OH, United States of America

Alan C Clark